/* ============================================================
   IA Orgánica · Identidad visual compartida de verticales
   Navy + Gold · coherente con activodigital.es y el portal de firma
   Servir estático desde el nodo DMZ. Sin framework, sin build.
   ============================================================ */

:root{
  --navy:#0d2240;
  --navy-2:#143257;
  --navy-3:#1d3f6b;
  --gold:#c8a84b;
  --gold-soft:#e3cd86;
  --paper:#f8f9fc;
  --ink:#0d2240;
  --ink-soft:#445268;
  --line:#dfe4ee;
  --white:#ffffff;
  --ok:#1f7a4d;
  --warn:#9a6b12;
  --radius:3px;
  --shadow:0 1px 2px rgba(13,34,64,.06),0 8px 30px rgba(13,34,64,.08);
  --shadow-lift:0 2px 6px rgba(13,34,64,.10),0 18px 50px rgba(13,34,64,.14);
  --serif:"Playfair Display",Georgia,"Times New Roman",serif;
  --sans:"Source Sans 3","Source Sans Pro",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --mono:"Source Code Pro","SF Mono",ui-monospace,Menlo,Consolas,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:17px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

.wrap{max-width:1140px;margin:0 auto;padding:0 28px}
.wrap-narrow{max-width:840px;margin:0 auto;padding:0 28px}

/* ---------- Topbar ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(13,34,64,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid rgba(200,168,75,.25);
}
.topbar .wrap{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:11px;color:var(--white);font-family:var(--serif);font-weight:700;font-size:1.15rem;letter-spacing:.2px}
.brand .mark{
  width:30px;height:30px;border-radius:2px;
  background:linear-gradient(135deg,var(--gold),var(--gold-soft));
  display:grid;place-items:center;color:var(--navy);font-weight:900;font-family:var(--sans);font-size:.95rem;
  box-shadow:0 2px 8px rgba(200,168,75,.4);
}
.brand small{display:block;font-family:var(--sans);font-weight:400;font-size:.66rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold-soft);opacity:.85}
.nav{display:flex;align-items:center;gap:30px}
.nav a{color:#cdd6e6;font-size:.92rem;font-weight:600;letter-spacing:.2px;transition:color .18s}
.nav a:hover{color:var(--gold-soft)}
.nav .btn-nav{
  padding:9px 18px;border:1px solid var(--gold);color:var(--gold-soft);border-radius:var(--radius);
  transition:all .2s;
}
.nav .btn-nav:hover{background:var(--gold);color:var(--navy)}
.menu-toggle{display:none;background:none;border:0;color:var(--white);font-size:1.6rem;cursor:pointer;line-height:1}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--sans);font-weight:700;font-size:1rem;letter-spacing:.2px;
  padding:15px 30px;border-radius:var(--radius);cursor:pointer;
  border:1px solid transparent;transition:transform .15s,box-shadow .2s,background .2s;
}
.btn-gold{background:linear-gradient(135deg,var(--gold),var(--gold-soft));color:var(--navy);box-shadow:0 4px 18px rgba(200,168,75,.35)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 8px 26px rgba(200,168,75,.45)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:var(--white)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-soft)}
.btn-navy{background:var(--navy);color:var(--white)}
.btn-navy:hover{background:var(--navy-2);transform:translateY(-2px)}
.btn-outline{background:transparent;border-color:var(--navy);color:var(--navy)}
.btn-outline:hover{background:var(--navy);color:var(--white)}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 520px at 78% -10%,rgba(200,168,75,.16),transparent 60%),
    radial-gradient(900px 480px at 8% 110%,rgba(29,63,107,.5),transparent 55%),
    linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 55%,#0a1c34 100%);
  color:var(--white);
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:46px 46px;
  mask:radial-gradient(700px 460px at 70% 20%,#000,transparent 75%);
  pointer-events:none;
}
.hero .wrap{position:relative;z-index:2;padding:96px 28px 104px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-size:.74rem;letter-spacing:.26em;text-transform:uppercase;
  color:var(--gold-soft);border:1px solid rgba(200,168,75,.4);
  padding:7px 15px;border-radius:100px;margin-bottom:26px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(200,168,75,.22)}
.hero h1{
  font-family:var(--serif);font-weight:800;
  font-size:clamp(2.5rem,5.6vw,4.1rem);line-height:1.08;
  letter-spacing:-.5px;max-width:16ch;margin-bottom:22px;
}
.hero h1 .accent{color:var(--gold-soft)}
.hero .lede{font-size:clamp(1.05rem,1.7vw,1.32rem);color:#c5d0e2;max-width:60ch;margin-bottom:38px;font-weight:400}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-foot{
  margin-top:54px;display:flex;gap:34px;flex-wrap:wrap;
  font-family:var(--mono);font-size:.78rem;color:#8fa1bd;letter-spacing:.04em;
}
.hero-foot span{display:flex;align-items:center;gap:9px}
.hero-foot b{color:var(--gold-soft);font-weight:600}

/* ---------- Sections ---------- */
section{padding:88px 0}
.section-head{max-width:64ch;margin-bottom:54px}
.section-head .kicker{
  font-family:var(--mono);font-size:.74rem;letter-spacing:.24em;text-transform:uppercase;
  color:var(--gold);font-weight:600;margin-bottom:14px;display:block;
}
.section-head h2{font-family:var(--serif);font-weight:700;font-size:clamp(1.9rem,3.4vw,2.7rem);line-height:1.16;letter-spacing:-.4px;margin-bottom:16px}
.section-head p{font-size:1.1rem;color:var(--ink-soft);max-width:60ch}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- Thesis (97%) ---------- */
.thesis{
  background:linear-gradient(160deg,var(--navy),#0a1c34);color:var(--white);
  position:relative;overflow:hidden;
}
.thesis::before{
  content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,168,75,.14),transparent 65%);
}
.thesis .wrap{position:relative;z-index:2}
.thesis .big{
  font-family:var(--serif);font-weight:800;
  font-size:clamp(2.1rem,4.4vw,3.4rem);line-height:1.18;letter-spacing:-.4px;
  max-width:20ch;margin-bottom:20px;
}
.thesis .big em{color:var(--gold-soft);font-style:normal}
.thesis .sub{color:#c2cde0;font-size:1.12rem;max-width:62ch;margin-bottom:46px}
.deny{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.deny .card{
  background:rgba(255,255,255,.04);border:1px solid rgba(200,168,75,.22);
  border-radius:var(--radius);padding:26px 24px;
}
.deny .card .x{font-family:var(--mono);color:var(--gold-soft);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;margin-bottom:12px}
.deny .card h4{font-family:var(--serif);font-size:1.18rem;margin-bottom:8px}
.deny .card p{color:#aab8d0;font-size:.96rem}

/* ---------- Doors (card grid) ---------- */
.doors{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:22px}
.door{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  padding:34px 30px;transition:transform .2s,box-shadow .25s,border-color .2s;
  position:relative;display:flex;flex-direction:column;min-height:230px;
}
.door::before{
  content:"";position:absolute;left:0;top:26px;bottom:26px;width:3px;
  background:linear-gradient(var(--gold),var(--gold-soft));border-radius:3px;opacity:.85;
}
.door:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:rgba(200,168,75,.5)}
.door .ico{font-size:1.5rem;margin-bottom:16px;color:var(--gold)}
.door h3{font-family:var(--serif);font-size:1.28rem;margin-bottom:10px;letter-spacing:-.2px}
.door p{color:var(--ink-soft);font-size:.97rem;flex:1}
.door .go{
  margin-top:18px;font-family:var(--mono);font-size:.8rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--navy);font-weight:700;display:inline-flex;align-items:center;gap:8px;transition:gap .2s,color .2s;
}
.door:hover .go{gap:13px;color:var(--gold)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:22px;counter-reset:step}
.step{position:relative;padding:30px 26px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius)}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--mono);font-size:.84rem;color:var(--gold);font-weight:700;letter-spacing:.1em;
  display:block;margin-bottom:14px;
}
.step h4{font-family:var(--serif);font-size:1.12rem;margin-bottom:8px}
.step p{color:var(--ink-soft);font-size:.93rem}

/* ---------- Demo panel ---------- */
.demo-shell{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);
}
.demo-bar{
  background:linear-gradient(90deg,var(--navy),var(--navy-2));
  border-left:3px solid var(--gold);
  padding:16px 24px;display:flex;align-items:center;justify-content:space-between;color:var(--white);
}
.demo-bar .t{font-family:var(--serif);font-size:1.05rem;display:flex;align-items:center;gap:11px}
.demo-bar .pill{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--navy);background:var(--gold-soft);padding:4px 11px;border-radius:100px}
.demo-body{padding:30px 28px}
.demo-row{display:flex;gap:14px;flex-wrap:wrap;align-items:flex-end}
.field{flex:1;min-width:220px}
.field label{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--ink-soft);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;font-family:var(--sans);font-size:.98rem;color:var(--ink);
  padding:13px 15px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
  transition:border-color .18s,box-shadow .18s;
}
.field textarea{min-height:104px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(200,168,75,.16)}
.demo-note{margin-top:16px;font-size:.84rem;color:var(--ink-soft);display:flex;gap:9px;align-items:flex-start}
.demo-note .ic{color:var(--gold);flex-shrink:0}
.demo-out{
  margin-top:22px;border-top:1px dashed var(--line);padding-top:22px;display:none;
}
.demo-out.on{display:block;animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.demo-status{font-family:var(--mono);font-size:.86rem;color:var(--ink-soft);display:flex;align-items:center;gap:10px}
.spin{width:15px;height:15px;border:2px solid var(--line);border-top-color:var(--gold);border-radius:50%;animation:rot .8s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
.demo-result{margin-top:18px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px;font-size:.95rem}
.demo-result h5{font-family:var(--serif);font-size:1.1rem;margin-bottom:10px}
.demo-result .meta{font-family:var(--mono);font-size:.78rem;color:var(--ink-soft);margin-top:14px;word-break:break-all}

/* ---------- Verify block (placeholder) ---------- */
.verify{
  border:1px solid var(--line);border-radius:var(--radius);background:var(--white);
  padding:34px 32px;position:relative;
}
.verify .ribbon{
  position:absolute;top:-1px;right:24px;
  background:var(--warn);color:#fff;font-family:var(--mono);font-size:.66rem;
  letter-spacing:.14em;text-transform:uppercase;padding:6px 13px;border-radius:0 0 var(--radius) var(--radius);
}
.verify h3{font-family:var(--serif);font-size:1.35rem;margin-bottom:10px}
.verify p{color:var(--ink-soft);font-size:.98rem;margin-bottom:20px;max-width:62ch}
.verify-form{display:flex;gap:12px;flex-wrap:wrap}
.verify-form input{
  flex:1;min-width:260px;font-family:var(--mono);font-size:.92rem;
  padding:14px 16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--paper);
}
.verify-form input:disabled{opacity:.6;cursor:not-allowed}
.verify-msg{margin-top:14px;font-size:.86rem;color:var(--warn);font-family:var(--mono);letter-spacing:.02em}

/* ---------- Behind / IA Orgánica ---------- */
.behind{background:linear-gradient(160deg,var(--navy-2),var(--navy));color:var(--white)}
.behind .grid{display:grid;grid-template-columns:1.1fr .9fr;gap:54px;align-items:center}
.behind h2{font-family:var(--serif);font-size:clamp(1.9rem,3.4vw,2.7rem);margin-bottom:18px;line-height:1.18}
.behind h2 em{color:var(--gold-soft);font-style:normal}
.behind p{color:#c2cde0;margin-bottom:16px}
.behind ul{list-style:none;margin:22px 0 30px}
.behind li{padding:10px 0 10px 28px;position:relative;color:#d4ddec;font-size:.98rem;border-bottom:1px solid rgba(255,255,255,.07)}
.behind li::before{content:"◆";position:absolute;left:0;color:var(--gold);font-size:.7rem;top:13px}
.behind .panel{
  background:rgba(255,255,255,.04);border:1px solid rgba(200,168,75,.25);
  border-radius:var(--radius);padding:32px 30px;
}
.behind .panel .lbl{font-family:var(--mono);font-size:.7rem;letter-spacing:.2em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:18px}
.behind .panel .stat{margin-bottom:22px}
.behind .panel .stat b{font-family:var(--serif);font-size:2rem;color:var(--white);display:block;line-height:1}
.behind .panel .stat span{font-size:.86rem;color:#9fb0cc}

/* ---------- CTA band ---------- */
.cta-band{background:var(--paper);text-align:center}
.cta-band h2{font-family:var(--serif);font-size:clamp(1.9rem,3.6vw,2.8rem);margin-bottom:14px;letter-spacing:-.4px}
.cta-band p{color:var(--ink-soft);font-size:1.08rem;max-width:54ch;margin:0 auto 32px}
.cta-band .row{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
footer{background:var(--navy);color:#9fb0cc;padding:60px 0 34px;font-size:.9rem}
footer .grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;margin-bottom:42px}
footer .brand{margin-bottom:14px}
footer .col h5{color:var(--gold-soft);font-family:var(--mono);font-size:.74rem;letter-spacing:.18em;text-transform:uppercase;margin-bottom:16px}
footer .col a{display:block;color:#9fb0cc;padding:6px 0;transition:color .16s}
footer .col a:hover{color:var(--gold-soft)}
footer .blurb{color:#7e90ad;max-width:34ch;font-size:.88rem;line-height:1.6}
footer .legal{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px;font-size:.8rem;color:#6f819e}
footer .disclaimer{margin-top:18px;font-size:.76rem;color:#647697;line-height:1.6;max-width:90ch}

/* ---------- Breadcrumb (child pages) ---------- */
.crumb{background:var(--white);border-bottom:1px solid var(--line);padding:18px 0;font-family:var(--mono);font-size:.8rem;letter-spacing:.04em;color:var(--ink-soft)}
.crumb a{color:var(--navy);font-weight:600}
.crumb a:hover{color:var(--gold)}

/* ---------- Page header (child) ---------- */
.page-head{background:linear-gradient(160deg,var(--navy),var(--navy-2));color:var(--white);padding:70px 0 64px;position:relative;overflow:hidden}
.page-head::after{content:"";position:absolute;right:-80px;bottom:-120px;width:380px;height:380px;border-radius:50%;background:radial-gradient(circle,rgba(200,168,75,.13),transparent 65%)}
.page-head .wrap{position:relative;z-index:2}
.page-head .kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.24em;text-transform:uppercase;color:var(--gold-soft);margin-bottom:14px;display:block}
.page-head h1{font-family:var(--serif);font-size:clamp(2.1rem,4.4vw,3.2rem);line-height:1.12;letter-spacing:-.4px;max-width:18ch;margin-bottom:16px}
.page-head p{color:#c2cde0;font-size:1.12rem;max-width:58ch}

/* ---------- Prose (child content) ---------- */
.prose h2{font-family:var(--serif);font-size:1.7rem;margin:46px 0 16px;letter-spacing:-.3px}
.prose h3{font-family:var(--serif);font-size:1.28rem;margin:32px 0 12px}
.prose p{margin-bottom:16px;color:var(--ink-soft)}
.prose ul{margin:16px 0 22px;padding-left:22px;color:var(--ink-soft)}
.prose li{margin-bottom:9px}
.prose strong{color:var(--ink)}
.callout{
  border-left:3px solid var(--gold);background:var(--white);
  padding:22px 26px;border-radius:0 var(--radius) var(--radius) 0;margin:28px 0;
  box-shadow:var(--shadow);
}
.callout .lbl{font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:8px}

/* ---------- Reveal animation ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- Responsive ---------- */
@media(max-width:880px){
  .nav{
    position:fixed;inset:64px 0 auto 0;background:var(--navy);
    flex-direction:column;align-items:stretch;gap:0;padding:14px 0;
    border-bottom:1px solid rgba(200,168,75,.25);
    transform:translateY(-130%);transition:transform .3s;
  }
  .nav.open{transform:none}
  .nav a{padding:14px 28px}
  .nav .btn-nav{margin:10px 28px;text-align:center}
  .menu-toggle{display:block}
  .deny{grid-template-columns:1fr}
  .behind .grid{grid-template-columns:1fr;gap:34px}
  footer .grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media(max-width:560px){
  body{font-size:16px}
  .hero .wrap{padding:70px 22px 78px}
  section{padding:62px 0}
  footer .grid{grid-template-columns:1fr}
}